<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title></title>
		<!--[if lt IE 9]>
    <script src="jquery-1.9.0.js"></script>
<![endif]-->
		<!--[if gte IE 9]><!-->
		<script src="../js/jquery-3.1.1.js"></script>
		<!--<![endif]-->
		<script type="text/javascript">
			$(document).ready(function() {
				$(":text").css("background-color", "red");
			});
		</script>
	</head>

	<body>
		<form action="">
			用户名: <input type="text" name="user"><br> 密码: <input type="password" name="password"><br>
			<button type="button">没用的按钮</button>
			<input type="button" value="另外一个没用的按钮"><br>
			<input type="reset" value="重置">
			<input type="submit" value="提交"><br>
		</form>
	</body>

</html>